Works with both D and V series plates.
Dovetail adapter with a 5 inch long 1/2" 13 threaded stainless steel shaft
2.5 lb counterweight.
5" shaft can be used with 2.5 and 5lb counterweights
Mounts to dovetail plate, used for telescope front counterbalance for telescopes with a heavy rear mirror, such as an SCT. Wt. 3.2 lbs. total.